Combined structure of indoor sewage pretreatment device

Abstract

This utility model relates to the technical field of indoor sewage pretreatment equipment, and in particular to a combined structure for an indoor sewage pretreatment equipment. It includes: a three-compartment septic tank, a kitchen cleaning well, a water seal well, and a connection well. The kitchen cleaning well and the water seal well are both located above the three-compartment septic tank and are connected to the connection well. The three-compartment septic tank has a corner structure, and the connection well is located at the corner structure, connecting the three-compartment septic tank to the connection well. The combined structure of the indoor sewage pretreatment equipment provided by this utility model saves on internal connecting pipes and accessories, reduces costs, decreases the floor space required, and facilitates later maintenance and operation.

Description

Technical Field

[0001] This utility model relates to the technical field of indoor sewage pretreatment equipment, and in particular to a combined structure of an indoor sewage pretreatment equipment. Background Technology

[0002] To improve the rural living environment and achieve rural revitalization, rural sewage treatment projects aimed at the collection, treatment, and compliant discharge of domestic sewage are being carried out nationwide. Various types of domestic sewage treatment facilities, including centralized treatment facilities and indoor pretreatment equipment, are widely used. Indoor pretreatment equipment, as the front-end of sewage treatment, primarily functions to initially separate suspended solids, grease, and large particulate impurities from sewage, reducing the burden on subsequent treatment processes and improving overall system efficiency. Indoor pretreatment equipment is generally installed inside or around rural households and typically does not involve complex biochemical reactions; its main objective is to intercept solid pollutants and regulate water quality and quantity.

[0003] To address the pretreatment requirements and operation and maintenance needs of domestic sewage with varying physicochemical properties, such as toilet wastewater, kitchen wastewater, and laundry wastewater, various types of pretreatment equipment exist, including physical filtration devices, kitchen cleaning wells, three-compartment septic tanks, water-sealed wells, and household connection wells. Depending on the different physicochemical properties of the sewage, each household needs at least four sets of equipment, plus connecting pipes and accessories. This results in a large overall footprint and high construction costs. In areas with limited land, some pretreatment equipment often needs to be abandoned, compromising the effectiveness of sewage pretreatment. Furthermore, the layout of the pretreatment equipment varies depending on the house's structure, leading to significant variability in the final result, which depends heavily on the initial survey and design capabilities. Additionally, the different equipment is scattered around the front and back of the houses, making the connections unclear after construction and backfilling, hindering later operation and maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a combined structure for an indoor sewage pretreatment equipment, so as to alleviate the problems of existing indoor sewage pretreatment equipment having a large footprint, high construction costs, and inconvenience in later operation and maintenance.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A combined structure for an indoor sewage pretreatment device includes: a three-compartment septic tank, a kitchen cleaning well, a water seal well, and a connection well. The kitchen cleaning well and the water seal well are both located above the three-compartment septic tank and are respectively connected to the connection well. The three-compartment septic tank has a corner structure, and the connection well is located at the corner structure. The three-compartment septic tank is connected to the connection well.

[0007] Furthermore, the bottom depth of the connection well is the same as the bottom depth of the three-compartment septic tank, and the top height of the connection well is higher than the top height of the three-compartment septic tank.

[0008] Furthermore, the three-compartment septic tank includes a first module and a second module connected vertically, the first module and the second module being connected to form the corner structure, the kitchen cleaning well being located above the first module, and the water seal well being located above the second module.

[0009] Furthermore, the side of the first module or the second module is provided with a first interface that communicates with the toilet's water outlet pipe;

[0010] The first module or the second module has a second interface on its side that communicates with the service well.

[0011] Furthermore, the first module has a first inspection port on its top, and the second module has a second inspection port on its top.

[0012] Furthermore, the kitchen cleaning well is provided with a third interface connected to the kitchen water outlet pipe and a fourth interface connected to the household connection well on its two opposite sides.

[0013] Furthermore, a third inspection port is provided at the top of the kitchen cleaning well.

[0014] Furthermore, the water seal well is provided with a fifth interface connected to the drain pipe and a sixth interface connected to the household connection well on its two opposite sides.

[0015] Furthermore, a fourth inspection port is provided at the top of the water-sealed well.

[0016] Furthermore, the side of the inlet manhole is provided with a seventh interface that connects to the outdoor collection pipe, and the top of the inlet manhole is provided with a fifth inspection port.

[0017] This utility model brings at least the following beneficial effects:

[0018] This utility model provides a combined structure for an indoor sewage pretreatment device, including: a three-compartment septic tank, a kitchen cleaning well, a water seal well, and a connection well. The kitchen cleaning well and the water seal well are both located above the three-compartment septic tank, and the kitchen cleaning well and the water seal well are respectively connected to the connection well. The three-compartment septic tank has a corner structure, and the connection well is located in the corner structure. The three-compartment septic tank is connected to the connection well.

[0019] Wastewater from the toilet outlet is treated in the three-compartment septic tank before being discharged into the connection well. Oily and greasy wastewater from the kitchen outlet is treated in the kitchen cleaning well, and the separated wastewater is discharged into the connection well. Wastewater from the floor drain outlet is treated in the water seal well before being discharged into the connection well. Pre-treated domestic sewage in the connection well is then discharged into the outdoor collection pipe. Both the kitchen cleaning well and the water seal well are located above the three-compartment septic tank, while the connection well is located at the corner of the three-compartment septic tank. This combined structure organically integrates individual units of different sizes, installation depths, and pre-treatment functions. By adjusting the traditional compartment structure of the three-compartment septic tank, spatial coupling between the three-compartment septic tank and the connection well is achieved, utilizing the upper space of the three-compartment septic tank to embed the kitchen cleaning well and the water seal well. The combined system can simultaneously remove suspended solids, grease, and large particulate impurities, resulting in excellent wastewater pretreatment. It utilizes the space occupied by the original three-compartment septic tank to realize all the functions of a three-compartment septic tank, kitchen cleaning well, water seal well, and household connection well, saving internal connecting pipes and accessories, reducing costs. Furthermore, due to the unified design, it facilitates later maintenance and operation, achieving a user effect that is fully functional, intensive in land use, and clear in operation and maintenance.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 An exploded view of the combined structure of the indoor sewage pretreatment equipment provided in this embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the combined structure of the indoor sewage pretreatment equipment provided in an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the structure of a three-compartment septic tank provided in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of a three-compartment septic tank provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the internal structure of the kitchen cleaning well provided in this embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the internal structure of a water-sealed well provided for an embodiment of this utility model.

[0028] icon:

[0029] 100 - Three-compartment septic tank; 110 - First module; 120 - Second module; 130 - First baffle; 140 - Second baffle; 150 - First connecting pipe; 160 - Second connecting pipe; 170 - First chamber; 180 - Second chamber; 190 - Third chamber; 200 - Kitchen cleaning well; 210 - Third baffle; 220 - Third connecting pipe; 300 - Water seal well; 310 - Fourth connecting pipe; 400 - Household connection well;

[0030] 1-First interface; 2-Second interface; 3-Second inspection port; 4-First inspection port; 5-Fifth interface; 6-Sixth interface; 7-Fourth inspection port; 8-Fourth interface; 9-Third interface; 10-Third inspection port; 11-Fifth inspection port; 12-Seventh interface. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] Example 1

[0038] Depending on the different physicochemical properties of the wastewater, each household needs to install at least four sets of indoor wastewater pretreatment equipment, plus connecting pipes and accessories. This results in a large overall footprint and high construction costs. In areas with limited land, some pretreatment equipment often has to be abandoned, compromising the effectiveness of wastewater pretreatment. Furthermore, the layout of the indoor wastewater pretreatment equipment varies depending on the house's structure, and the final effect depends heavily on the preliminary survey and design capabilities, leading to significant variability. In addition, the different equipment is scattered around the front and back of the house, making the connections unclear after construction and backfilling, hindering later operation and maintenance.

[0039] In view of this, the present utility model provides a combined structure of an indoor sewage pretreatment device, including: a three-compartment septic tank 100, a kitchen cleaning well 200, a water seal well 300, and a household connection well 400. The kitchen cleaning well 200 and the water seal well 300 are both located above the three-compartment septic tank 100. The kitchen cleaning well 200 and the water seal well 300 are respectively connected to the household connection well 400. The three-compartment septic tank 100 has a corner structure, and the household connection well 400 is located in the corner structure. The three-compartment septic tank 100 is connected to the household connection well 400.

[0040] Please see Figure 2Wastewater from the toilet outlet is treated in the three-compartment septic tank 100 before being discharged into the connection well 400. Oily and watery wastewater from the kitchen outlet is treated in the kitchen cleaning well 200, and the separated wastewater is discharged into the connection well 400. Wastewater from the floor drain outlet is treated in the water seal well 300 before being discharged into the connection well 400. Pre-treated domestic sewage in the connection well 400 is then discharged into the outdoor collection pipe. Both the kitchen cleaning well 200 and the water seal well 300 are located above the three-compartment septic tank 100, while the connection well 400 is located at the corner of the three-compartment septic tank 100. This combined structure organically combines individual units of different sizes, installation depths, and pre-treatment functions. By adjusting the traditional compartment structure of the three-compartment septic tank 100, spatial coupling between the three-compartment septic tank 100 and the connection well 400 is achieved, utilizing the upper space of the three-compartment septic tank 100 to embed the kitchen cleaning well 200 and the water seal well 300. The combined system can simultaneously remove suspended solids, grease, and large particulate impurities, resulting in excellent wastewater pretreatment. Utilizing the space occupied by the original three-compartment septic tank 100, it integrates all the functions of the three-compartment septic tank 100, kitchen cleaning well 200, water seal well 300, and household connection well 400, saving on internal connecting pipes and accessories, reducing costs. Furthermore, the unified design facilitates later maintenance and operation, achieving a comprehensive, land-saving, and clear operation and maintenance effect.

[0041] In an optional embodiment, the bottom depth of the connection well 400 is the same as the bottom depth of the three-compartment septic tank 100, and the top height of the connection well 400 is higher than the top height of the three-compartment septic tank 100.

[0042] Please see Figure 2 By designing the height of the three-compartment septic tank 100 and the connection well 400, the kitchen cleaning well 200 and the water seal well 300 are embedded in the space between the top of the three-compartment septic tank 100 and the ground.

[0043] In an optional embodiment, the three-compartment septic tank 100 includes a first module 110 and a second module 120 connected vertically. The first module 110 and the second module 120 are connected to form a corner structure. The kitchen cleaning well 200 is located above the first module 110, and the water seal well 300 is located above the second module 120.

[0044] Please see Figure 3 By using the compartmentalized structure of the three-compartment septic tank 100, namely the first module 110 and the second module 120 connected in an L-shape, the spatial coupling between the three-compartment septic tank 100 and the household connection well 400 is achieved while meeting the required retention time ratio.

[0045] For further details, please see Figure 4The three-compartment septic tank 100 is internally equipped with a first baffle 130 and a second baffle 140, thereby dividing the three-compartment septic tank 100 into a first chamber 170, a second chamber 180, and a third chamber 190. The first baffle 130 and the second baffle 140 are arranged perpendicularly, and the first baffle 130 is connected to a second connecting pipe 160 to connect the first chamber 170 and the third chamber 190; the second baffle 140 is connected to a first connecting pipe 150 to connect the first chamber 170 and the second chamber 180.

[0046] In an optional embodiment, the first module 110 or the second module 120 is provided with a first interface 1 connected to the toilet water outlet pipe on its side; the first module 110 or the second module 120 is provided with a second interface 2 connected to the household connection well 400 on its side.

[0047] Please continue reading Figure 3 In this embodiment, the side of the second module 120 is provided with a first interface 1 that communicates with the toilet outlet pipe. Alternatively, the first interface 1 can also be provided on the side of the first module 110, as long as the three-compartment septic tank 100 is connected to the toilet outlet pipe. In this embodiment, the side of the first module 110 is provided with a second interface 2 that communicates with the household connection well 400. Alternatively, the second interface 2 can also be provided on the side of the second module 120, as long as the three-compartment septic tank 100 is connected to the household connection well 400.

[0048] In an optional embodiment, the top of the first module 110 is provided with a first inspection port 4, and the top of the second module 120 is provided with a second inspection port 3.

[0049] Please see Figure 3 Maintenance personnel can clean or repair the first module 110 through the first inspection port 4 and the second module 120 through the second inspection port 3, which facilitates later maintenance and operation.

[0050] In an optional embodiment, the kitchen cleaning well 200 is provided with a third interface 9 connected to the kitchen water outlet pipe and a fourth interface 8 connected to the household connection well 400 on its two opposite sides.

[0051] Please see Figure 1 The kitchen water outlet pipe is connected to the third interface 9. After the wastewater is separated by oil and water in the kitchen cleaning well 200, it is discharged into the household well 400 through the fourth interface 8.

[0052] Furthermore, a third inspection port 10 is provided at the top of the kitchen cleaning well 200.

[0053] Please see Figure 1 Maintenance personnel can clean or repair the kitchen cleaning well 200 through the third inspection port 10, which facilitates later maintenance and operation.

[0054] Please see Figure 5 A third baffle 210 is installed inside the kitchen cleaning well 200 to achieve physical isolation inside the kitchen cleaning well 200. The third interface 9 is connected to a third connecting pipe 220 to connect to the kitchen water outlet pipe.

[0055] In an optional embodiment, the water seal well 300 is provided with a fifth interface 5 that communicates with the drain pipe and a sixth interface 6 that communicates with the household connection well 400 on its two opposite sides.

[0056] Please see Figure 1 The drain pipe is connected to the fifth interface 5. After the wastewater is treated in the water seal well 300, it is discharged into the household connection well 400 through the sixth interface 6.

[0057] Furthermore, a fourth inspection port 7 is provided at the top of the water-sealed well 300.

[0058] Please see Figure 1 Maintenance personnel can clean or repair the water seal well 300 through the fourth inspection port 7, which facilitates later maintenance and operation.

[0059] Please see Figure 6 The water seal well 300 is equipped with a fourth connecting pipe 310, which is connected to the sixth interface 6, so that the wastewater treated in the water seal well 300 can be discharged into the inlet well 400.

[0060] In an optional embodiment, the side of the service well 400 is provided with a seventh interface 12 that communicates with an outdoor collection pipe, and the top of the service well 400 is provided with a fifth inspection port 11.

[0061] Please see Figure 1 The outdoor collection pipe is connected to the seventh interface 12. Pre-treated domestic sewage is discharged through the seventh interface 12 and flows into the outdoor collection pipe. Maintenance personnel can perform cleaning or maintenance work on the service well 400 through the fifth inspection port 11. In addition, the position of the seventh interface 12 can be adjusted according to the actual connection direction, and an additional interface can be added to the side of the service well 400.

[0062] The combined structure of the indoor sewage pretreatment equipment achieves coupling with the connection well 400 by adjusting the compartment structure of the three-compartment septic tank 100. The kitchen cleaning well 200 and water seal well 300 are embedded in the upper space of the three-compartment septic tank 100. Utilizing the original floor space of the three-compartment septic tank 100, all the functions of the three-compartment septic tank 100, kitchen cleaning well 200, water seal well 300, and connection well 400 are realized, achieving pretreatment of toilet sewage, kitchen wastewater, and laundry wastewater. This saves on internal connecting pipes and accessories, and the unified design facilitates later maintenance and operation. The combined system can simultaneously remove suspended solids, grease, and large particulate impurities, while also allowing for separate maintenance and operation of each individual unit.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A combination structure of an indoor sewage pretreatment apparatus, characterized by comprising: 1) a sewage pretreatment device; and include: The septic tank comprises a three-compartment septic tank, a kitchen cleaning well, a water seal well, and a connection well. The kitchen cleaning well and the water seal well are both located above the three-compartment septic tank and are connected to the connection well. The three-compartment septic tank has a corner structure, and the connection well is located at the corner structure. The three-compartment septic tank is connected to the connection well.

2. The combined structure of the indoor sewage pretreatment equipment according to claim 1, characterized in that, The bottom depth of the connection well is the same as the bottom depth of the three-compartment septic tank, and the top height of the connection well is higher than the top height of the three-compartment septic tank.

3. The combined structure of the indoor sewage pretreatment equipment according to claim 2, characterized in that, The three-compartment septic tank includes a first module and a second module that are vertically connected. The first module and the second module are connected to form the corner structure. The kitchen cleaning well is located above the first module, and the water seal well is located above the second module.

4. The combined structure of the indoor sewage pretreatment equipment according to claim 3, characterized in that, The side of the first module or the second module is provided with a first interface that communicates with the toilet's water outlet pipe; The first module or the second module has a second interface on its side that communicates with the service well.

5. The combined structure of the indoor sewage pretreatment equipment according to claim 4, characterized in that, The first module has a first inspection port on its top, and the second module has a second inspection port on its top.

6. The combined structure of the indoor sewage pretreatment equipment according to claim 1, characterized in that, The kitchen cleaning well has a third interface connected to the kitchen water outlet pipe and a fourth interface connected to the household connection well on its two opposite sides.

7. The combined structure of the indoor sewage pretreatment equipment according to claim 6, characterized in that, A third inspection port is provided at the top of the kitchen cleaning well.

8. The combined structure of the indoor sewage pretreatment equipment according to claim 1, characterized in that, The water seal well has a fifth interface connected to the drain pipe and a sixth interface connected to the household connection well on its two opposite sides.

9. The combined structure of the indoor sewage pretreatment equipment according to claim 8, characterized in that, A fourth inspection port is provided at the top of the water-sealed well.

10. The combined structure of the indoor sewage pretreatment equipment according to claim 1, characterized in that, The side of the inlet manhole is provided with a seventh interface that connects to the outdoor collection pipe, and the top of the inlet manhole is provided with a fifth inspection port.

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